Study on the Design of High Voltage Sourced Converter Valve Using Phase Change Cooling Technology

With the increasing demand for high-efficiency and highly reliable DC conversion valves in power systems, traditional cooling technologies have become inadequate to meet the thermal management requirements of modern power electronic devices. This paper presents a novel design scheme for high voltage sourced converter valve based on phase change cooling technology, aimed at achieving efficient thermal management by leveraging the phase transition process between the solid and liquid states of materials. The paper establishes a design scheme that includes phase change cooling and valve layout plans, as well as working fluid compatibility analysis. Through theoretical analysis, this study compares the performance differences between traditional cooling methods and phase change cooling technology in practical applications. The results show that the application of phase change cooling technology in high voltage sourced converter valve significantly enhances heat dissipation efficiency and operational stability, providing new ideas and solutions for the future thermal management of power electronic devices.